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박정호,이춘식,박현건,김형갑 진주산업대학교 1998 산업과학기술연구소보 Vol.- No.5
The research described in this paper was conducted to estimate the level of air, water and soil pollution, and plans for environmental conservation in Chinju city. The characterizations of air, water and soil pollution in Chinju were investigated during the period of September and November of 1997. The concentrations of air and soil pollutant in Chinju were lower than a metropolitan areas or environmental standard. The pollution level of water quality were higher Keong-Ho and Yang-Chen river compared with Duck-Chen river.
차수수 껍질 주정 추출물의 항산화 활성과 식후 혈당 상승 억제 효과
전형식(Hyoung Sik Chun),권영인(Young In Kwon) 산업기술교육훈련학회 2018 산업기술연구논문지 (JITR) Vol.23 No.1
Inhibition of small intestinal α-glucosidases involved in the digestion and absorption of carbohydrates can significantly decrease the postprandial increase of blood glucose level after a mixed carbohydrate diet. In the current study, we evaluated the inhibitory activities of extracts from Sorghum bicolor (L.) Moench Hull (SMH) against rat small intestinal α-glucosidases. Furthermore, to determine the oxygen radical absorbance capacity (ORAC) in the Sorghum bicolor (L.) Moench Hull (SMH), phenolic content and ORAC value were measured by spectrophotomer and fluorescence detector. Consequently, ethanol extract from hull tested had a high α-glucosidase inhibitory activity. These in vitro studies indicate that hull extracts from Sorghum bicolor (L.) Moench which has antioxidant and α-glucosidase inhibitory activity have the potential in the development of effective anti-diabetic agents.
( Hyoung Gon Kim ),( Dong Jun Lee ),( Chun Sik Yoon ),( Seon Woo Cheong ) 한국환경과학회 2016 한국환경과학회지 Vol.25 No.4
We assessed the distribution of benthic macroinvertebrate at four surveying sites in Upo Wetland, a Ramsar site and the largest wetland in Korea, from February 2006 to November 2013. A long-term ecological monitoring was done monthly by using quantitative sampling method with dip net for analyzing the community change and correlation between the biodiversity and the environmental factors because environmental factors have a decisive effect on the community structure of the benthic macroinvertebrates. Total samples from the Upo Wetland area were classified into 3 phyla, 6 classes, 17 orders, 68 families, 176 species, and 25,720 individuals. Among the 176 species, 62 of the species had not been previously reported in this area. Asellus sp., Diplonychus esakii, and Gyraulus chinensis were the most common species in Upo Wetland. The change patterns of annual species diversity and species richness were calculated by using the average number of monthly occurring species and individuals. Diversity index increased from March to May and decreased after that showing lower diversity indices in July and August. It increased again in September and in October. Richness index showed similar tendency and fell around February and July, followed by a rising tendency around May and October. Correlation and regression analyses were performed with the change of biodiversity and each environmental factor. We found that water temperature have very significant positive correlation with species diversity in spring, and have significant indices in autumn and winter. On the other hand, precipitation showed a significantly negative correlation value in summer and autumn suggesting it has an effect on the community structure of benthic macroinvertebrates.
MICROCYSTIS SP., 휴믹산과 THMFP와의 상관성에 관한 연구
이춘식,박현건,김형갑 진주산업대학교 농업기술연구소 1996 農業技術硏究所報 Vol.9 No.-
본 연구의 결과 남조류 계통인 Microcystis와 저질(sediment), 지표수를 이용하여 조류 및 THMs의 전구물질의 고찰한 결과 상관관계는 다음과 같다. 1. Microcystis sp.의 조류세포를 파쇄시킨 후 농도별로 분취하여 TOC측정기로 측정한 결과 1∼50ppm 주입농도가 TOC농도의 상관성은 약 99%이상로 매우 밀접한 관계를 나타내었다. 2. TOC농도 1.35∼25.29mg/l에 대한 THMs의 농도는 19.96∼140.27㎍//l이 보였으며, 이러한 결과는 남조류계통종의 함량비율에 따른 것으로 나타났다. 3. 파쇄된 조류를 함유한 시료에 염소처리 전후 발생된 유기 화합물을 분석한 결과 다양한 유기화합물이 관찰되었다. This study were carried out to relation MICROCYSTIS sp. Humic acid and THMFP. The result were summarized as follows: 1. TOC analysis results come out relation 99% according to concentration after fragmentation of Microcystis sp. algae. 2. THMS concentration were 19.96-140.27ug/l according to TOC concentration 1.35-25.29ug/l. 3. Organic compound analysis results after fragmentation algae of treated chlorination were come out various organic compound.
도시가스 정압기 안전운영을 위한 인터랙티브 훈련 방안 연구
김형진(Hyoung Jean Kim),박찬국(Chan Cook Park),이재용(Jae Yong Lee),이춘식(Chun Sik Lee),유철희(Chul Hee Yu) 한국가스학회 2017 한국가스학회지 Vol.21 No.1
도시가스 정압기 안전 운영을 위한 운전원 안전훈련시스템의 주요 구성 요소 중 하나인 안전훈련 시나리오를 설계하고 구현함에 있어서, 단일 시나리오가 일방적으로 진행되는 기존 훈련 방식을 개선한 훈련 방안을 연구하였다. 안전훈련시스템과 운전원간의 상호 작용을 통해 훈련 시나리오의 다양성을 향상시켜 훈련 효과를 올리는 방안으로 플랜트 안전훈련 플랫폼 상에서 적용 가능한 Finite State Machine 모델 기반의 인터랙티브 훈련 방안을 개발하였다. 본 훈련 시나리오 시스템으로 인해 향후 확장된 대상 플랜트에의 안전훈련시스템 적용가능성을 기대해볼 수 있었다. We developed the safety training methods which improve the current methods by overcoming the single scenario-based one-way communication between trainee and training system. We improved the design and implementation of the safety training scenarios, which is one of the most important components of the plant safety training system for safe operation of the city gas governor. The diversity and training effects of the training scenarios can be improved by interactive training between the plant safety training system and operators. The interactive training methods were developed based on Finite State Machine model which is applicable to and based on plant safety training platform. We could see the possibility of applying this method of safety training scenario system to other domain of plant safety training system.